* {
    margin: 0px;
    padding: 0px;
}

header {
    height: 60px;
    width: 100%;
    background-color: rgb(136, 56, 228);
    text-align: center;
    padding-top: 15px;
    /* position: fixed;
    top: 0px; */
}

.body {
    background-color: #23b3df;
}

footer {
    /* position: sticky;
    left: 0px; */
    height: 35px;
    width: 100%;
    background-color: rgb(91, 111, 230);
    text-align: center;
    padding-top: 10px;
}

#nag {
    float: left;
    width: 18%;
    /* position: fixed;
    top: 75px; */
    position: sticky;
    top: 0px;
    background-color: #23b3df;
}

#main {
    width: 82%;
    display: inline-block;
    /* float: left; */
    /* padding-left: 18%;
    padding-top: 75px; */
    background-color: cornsilk;
}

table tr td:last-child::before {
    content: "￥";
}


/* .body::after {
    content: "";
    height: 0;
    clear: both;
    overflow: hidden;
    display: block;
    visibility: hidden;
} */

ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
    width: 100%;
    background-color: #23b3df;
}

li a {
    display: block;
    color: #000;
    padding: 8px 16px;
    text-decoration: none;
}


/* 鼠标移动到选项上修改背景颜色 */

li a:hover {
    background-color: rgb(0, 78, 247);
    color: white;
}

li a:active {
    background-color: cyan;
}


/* 首字大写 */

.firstbig::first-letter {
    font-size: 32px;
}


/* 首行缩进 */

.firstback {
    text-indent: 2em;
}

#divp div {
    text-align: left;
    padding-left: 20px;
}

.text-center {
    text-align: center;
}

table,
th,
td {
    width: 500px;
    margin: auto;
    border: 1px solid black;
    text-align: center;
}

h1 img {
    width: 27px;
    height: 100%;
}

p img {
    width: 100px;
    height: 100px;
}